Uhh...it's for Science? Uhh...I have bad luck with uploading small MB?

Wind turbine and wind powerWind turbine rotors can be divided according to several basic principles: - by wind action - returned to the position and axis of rotation - the speed of rotation.

Wind is the horizontal component of the flow of air masses caused by temperature difference or spatial distribution of pressure. Wind is the result of solar radiation, and its features in great part have influence local factors.

Solar Energy is a renewable and unlimited source of energy which directly or indirectly delivers most of the other sources of energy to Earth. Solar energy in the narrow sense means the amount energy that is transmitted by solar radiation and is expressed in J.  Solar energy in its original form is commonly used for conversion into heat energy for domestic hot systems water and heating (as additional energy source) and in solar power where for conversion of electricity is using photovoltaic systems.

By: wpat007Although it is much less expensive to initially get hooked into the local electric company's grid than it is to set up and hook into wind turbines, in the long run one saves money by utilizing the wind for one's energy needs—while also becoming more independent. Not receiving an electric bill while enjoying the advantages of the modern electrically-driven lifestyle is a wondrous feeling.

By: John CurtisDefinition of Wind EnergyOne form of solar energy is wind energy. Wind is a natural power source that can be economically used to generate electricity. The way in which wind is created is from the atmosphere of the sun causing areas of uneven heating. In conjunction with the uneven heating of the sun, rotation of the earth and the rockiness of the earth’s surface wind is formed.

By: wpat007There are many different forms in which alternative energy is available.One of these is solar power. Solar power is driven by photovoltaic cells, and these are progressively getting less expensive and more advanced. Solar energy power can be used for electricity, heating, and making hot water. Solar energy produces no pollution, as its input comes completely from the sun's rays.

By: Mike TownsendMany homeowners are turning towards alternative solutions to meeting their energy needs because of the rising energy costs sweeping the country and the world. Solar power for the home is one way a lot of people are saving money. Having solar power for the home installed may be a very expensive undertaking if performed by an expert. A lot of people, however are not aware that they can put in solar panels by themselves. If you 'do it yourself', you the homeowner, will enjoy all the benefits of solar power without paying installation fees.

By: blopaHome solar panels are the right solution for anyone willing to hold the polluting energy created by fuel-supplied power plants with green and renewable energy that is more than within reach.Installed on the roof of the house, or even built in the roof, if they are included during the building stage, home solar panels can supply all the energy and heat that you need to run all your appliances, and they will even let you give energy to other users.

By: Assaf KatzirWith increasing energy costs plaguing the nation and global warming on thoughts of millions across the world, adding residential solar panels to your home would be a wise thing to do. With the low investment to install these solar panels you will benefit greatly from the amount of money you will save in energy costs in the long run. The residential solar panels of today are much better looking and more appeasing to the eye than solar panels of the past.